40 lines
1.1 KiB
Plaintext
40 lines
1.1 KiB
Plaintext
class Complex(private val real: Double, private val imag: Double) {
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operator fun plus(other: Complex) = Complex(real + other.real, imag + other.imag)
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operator fun times(other: Complex) = Complex(
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real * other.real - imag * other.imag,
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real * other.imag + imag * other.real
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)
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fun inv(): Complex {
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val denom = real * real + imag * imag
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return Complex(real / denom, -imag / denom)
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}
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operator fun unaryMinus() = Complex(-real, -imag)
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operator fun minus(other: Complex) = this + (-other)
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operator fun div(other: Complex) = this * other.inv()
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fun conj() = Complex(real, -imag)
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override fun toString() =
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if (imag >= 0.0) "$real + ${imag}i"
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else "$real - ${-imag}i"
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}
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fun main(args: Array<String>) {
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val x = Complex(1.0, 3.0)
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val y = Complex(5.0, 2.0)
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println("x = $x")
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println("y = $y")
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println("x + y = ${x + y}")
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println("x - y = ${x - y}")
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println("x * y = ${x * y}")
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println("x / y = ${x / y}")
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println("-x = ${-x}")
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println("1 / x = ${x.inv()}")
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println("x* = ${x.conj()}")
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}
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